3820 EXPERIMENTS WITH COLOURED PAPERS. 
I now put vermilion instead of green, and moved 
both of them a foot, but so that the vermilion was 
nearest the window, though touching the blue; she 
came to the vermilion. 
Again, September 11, I marked a wasp. She re- 
turned to the honey over and over again with her usual 
assiduity. The following morning I put the honey on 
green paper; she came backwards and forwards all day. 
On the 13th I opened my window at 6.8, and she came 
in immediately. During an hour she made ten 
journeys. On her leaving the honey for the eleventh 
time, I placed some honey on vermilion paper where 
the green had been, and put the honey and the green 
paper about a foot off. 
She came at 7.25 to the vermilion. I then put orange 
instead of vermilion. 
55 7.34  ,, orange. JI then put blue 
instead of orange. 
ae 740 ,, blue. I then put white in- 
stead of blue. 
os 7.47 ,, white. I then put yellow in- 
stead of white. 
$5 7.55 ,, yellow and then to the green. 
I transposed the colours. 
ay 8.2 ,, green. I then moved both 
colours about a foot, but so that the yellow was a little 
nearer to the old place. 
She returned at 8.9 to the yellow. 
